Abstract: A scroll compression mechanism 11 for compressing refrigerant and a driving motor 13 that is connected to the scroll compression mechanism 11 through a driving shaft 15 and drives the scroll compression mechanism 11 are accommodated in a casing 3, the scroll compression mechanism 11 is supported in the casing 3 by a main frame 21, a stator 37 of the driving motor 13 is directly or indirectly supported in the casing 3, and the driving shaft 15 is connected to a rotor 39 of the driving motor 13 and supported in the casing 3 by a bearing plate 8, and a lower end of the driving shaft 15 is supported by a thrust plate 6 provided to the bearing plate 8, and the center position of the rotor 39 is located to be lower than the center position of the stator 37.

Abstract: A scroll compression mechanism 11 for compressing refrigerant and a driving motor 13 that drives the scroll compression mechanism 11 are accommodated in a casing 3, the scroll compression mechanism 11 is supported in the casing 3 by a main frame 21, the driving shaft 15 is connected to a rotor 39 of the driving motor 13 and supported in the casing 3 by a bearing plate 8, a pickup 45 is connected to an oil supply path 41 extending in an up-and-down direction in the driving shaft 15, and intercommunication paths 38B, 54A through which lubrication oil scraped up by the pickup 45 and supplied to respective lubrication sites is returned to the lower side of the driving motor 13 are provided between the stator 37 and the spacer ring 38 or between the spacer ring 38 and the casing 3.

Abstract: A scroll compression device that prevents scattering of lubrication oil to a discharge pipe side is provided. A cup 48 which is opened at the lower portion thereof and prevents scattering of lubrication oil is disposed on the lower surface of the main frame 21, and an annular insulator 19 having a double wall structure which surrounds windings is disposed on the upper surface of a stator 37. The peripheral wall of the cup 48 is hung between the double walls 19A, 19B of the insulator.

Abstract: There are provided a scroll compression device in which magnetization of a rotor and centering of a fixed scroll can be easily performed, and a method of assembling the scroll compression device.

Abstract: A scroll compression device that enhances the efficiency of workability of magnetization of windings is provided. A scroll compression mechanism 11 for compressing refrigerant and a driving shaft 13 that is connected to the scroll compression mechanism 11 through a driving shaft 15 and drives the scroll compression mechanism 11 are accommodated in a casing 3, the scroll compression mechanism 11 is supported in the casing 3 by a main frame 21, a rotor 39 of the driving motor 13 is connected to the driving shaft 15, the driving shaft 15 is supported in the casing 3 by a bearing plate 8, a pickup 45 is connected to an oil supply path 41 extending in an up-and-down direction in the driving shaft 15, and a holder 58 extending in a radial direction is provided in the oil supply path 41 at the back side of the pickup 45.

Abstract: A scroll compression mechanism 11 for compressing refrigerant and a driving motor 13 that is connected to the scroll compression mechanism 11 through a driving shaft 15 and drives the scroll compression mechanism 11 are accommodated in a casing 3, the scroll compression mechanism 11 is supported in the casing 3 by a main frame 21, a stator 37 of the driving motor 13 is directly or indirectly supported in the casing 3, and the driving shaft 15 is connected to a rotor 39 of the driving motor 13 and supported in the casing 3 by a bearing plate 8, and a lower end of the driving shaft 15 is supported by a thrust plate 6 provided to the bearing plate 8, and the center position of the rotor 39 is located to be lower than the center position of the stator 37.

Abstract: A scroll compression mechanism 11 for compressing refrigerant and a driving motor 13 that drives the scroll compression mechanism 11 are accommodated in a casing 3, the scroll compression mechanism 11 is supported in the casing 3 by a main frame 21, the driving shaft 15 is connected to a rotor 39 of the driving motor 13 and supported in the casing 3 by a bearing plate 8, a pickup 45 is connected to an oil supply path 41 extending in an up-and-down direction in the driving shaft 15, and intercommunication paths 38B, 54A through which lubrication oil scraped up by the pickup 45 and supplied to respective lubrication sites is returned to the lower side of the driving motor 13 are provided between the stator 37 and the spacer ring 38 or between the spacer ring 38 and the casing 3.

Abstract: A scroll compression device that prevents scattering of lubrication oil to a discharge pipe side is provided. A cup 48 which is opened at the lower portion thereof and prevents scattering of lubrication oil is disposed on the lower surface of the main frame 21, and an annular insulator 19 having a double wall structure which surrounds windings is disposed on the upper surface of a stator 37. The peripheral wall of the cup 48 is hung between the double walls 19A, 19B of the insulator.

Abstract: A scroll type compressor including a fixed scroll, a movable scroll engaged with the fixed scroll, and a hermetically sealed container in which the fixed scroll and the movable scroll are mounted. The fixed scroll or the movable scroll has an intercommunication path for lubricating oil that is opened to the outside of the one scroll at one end thereof, extends radially inside the scroll and has a high-pressure opening intercommunicating with a high-pressure portion of the container and a low-pressure opening intercommunicating with a low-pressure portion in the scroll, a pin member disposed in the intercommunication path so as to be movable radially in the scroll, a screw member closing one end of the intercommunication path, and a stopper provided at a predetermined position in the intercommunication path to regulate radial movement of the pin member.

Abstract: A scroll type compressor including a fixed scroll, a movable scroll engaged with the fixed scroll, and a hermetically sealed container in which the fixed scroll and the movable scroll are mounted. The fixed scroll or the movable scroll has an intercommunication path for lubricating oil that is opened to the outside of the one scroll at one end thereof, extends radially inside the scroll and has a high-pressure opening intercommunicating with a high-pressure portion of the container and a low-pressure opening intercommunicating with a low-pressure portion in the scroll, a pin member disposed in the intercommunication path so as to be movable radially in the scroll, a screw member closing one end of the intercommunication path, and a stopper provided at a predetermined position in the intercommunication path to regulate radial movement of the pin member.

Abstract: A compressor comprises, in a container body, an electric element, and a compressive element driven by the electric element. An oil storage is provided in the bottom, and an oil pump is provided to suck up oil from the oil storage. The oil pump includes a cylinder fixed to a lower support frame, a rotator axially installed on the lower end of a driveshaft and operative to rotate within an inner space of the cylinder, and a suction pipe having an upper end connected to a communication notch formed in the cylinder and a lower end inserted and arranged in the oil storage. In this compressor, the upper end of the suction pipe is protruded into the communication notch of the cylinder to configure an oil residue pool.

Abstract: A compressor comprises an oil storage provided in the bottom of a container body. An oil cup is fixed in communication with the oil storage. An oil pump is attached to the lower end of a shaft and inserted into the oil cup. A rotation inhibitor is provided including a plurality of plates each having one end fixed to the inner wall of the oil cup and the other end disposed almost vertically toward the central axis of the oil cup. The plate has an upper end located in the vicinity of the upper edge of the oil cup, a lower end located in the vicinity of the bottom of the oil cup, and side ends located in the vicinity of the outer wall of the oil pump.

Abstract: A compressor comprises an oil storage provided in the bottom of a container body. An oil cup is fixed in communication with the oil storage. An oil pump is attached to the lower end of a shaft and inserted into the oil cup. A rotation inhibitor is provided including a plurality of plates each having one end fixed to the inner wall of the oil cup and the other end disposed almost vertically toward the central axis of the oil cup. The plate has an upper end located in the vicinity of the upper edge of the oil cup, a lower end located in the vicinity of the bottom of the oil cup, and side ends located in the vicinity of the outer wall of the oil pump.

Abstract: A compressor comprises, in a container body, an electric element, and a compressive element driven by the electric element. An oil storage is provided in the bottom, and an oil pump is provided to suck up oil from the oil storage. The oil pump includes a cylinder fixed to a lower support frame, a rotator axially installed on the lower end of a driveshaft and operative to rotate within an inner space of the cylinder, and a suction pipe having an upper end connected to a communication notch formed in the cylinder and a lower end inserted and arranged in the oil storage. In this compressor, the upper end of the suction pipe is protruded into the communication notch of the cylinder to configure an oil residue pool.

Abstract: A discharge lamp unit with noise shields includes a discharge lamp, a discharge lamp control circuit, a filter circuit, the first and the second shield cases, and a power supply. The first shield case shields a discharge lamp control circuit and a filter circuit. The second shield case exclusively shields the filter circuit. Further, a ground wire of the filter circuit and the first shield case are electrically connected. Still further, a ground wire of the control circuit and the second shield case are electrically connected.

Abstract: A mounting structure for mounting a discharge lamp lighting device is arranged to directly connect a discharge lamp provided in a headlight unit to a connector provided in the discharge lamp lighting device. The headlight unit includes a reflector, and the mounting structure comprises a holder for holding the discharge lamp, wherein the holder includes a holder securing portion directly connected to the reflector and is secured to the reflector via the holder securing portion. The discharge lamp is secured to the reflector via the holder. The mounting structure further comprises a securing member directly connected to the reflector for securing the discharge lamp lighting device to the reflector. The holder and the securing member are separated from each other and the discharge lamp lighting device is secured to the reflector via the securing member.

Abstract: It is desired to avoid lack of lubricant oil in any of a plurality of compressors disposed in parallel in a single refrigerant circuit. To achieve this result, a freezer unit is provided, wherein a first kind of oil return pipe leading to a refrigerant suction pipe of a first compressor from an oil separator installed in a discharged refrigerant junction pipe is installed, and a second kind of oil return pipe leading to a refrigerant suction pipe of a second compressor from the regular oil level height of the first compressor 1 is utilized.

Abstract: A discharge lamp unit with noise shields includes a discharge lamp, a discharge lamp control circuit, a filter circuit, the first and the second shield cases, and a power supply. The first shield case shields a discharge lamp control circuit and a filter circuit. The second shield case exclusively shields the filter circuit. Further, a ground wire of the filter circuit and the first shield case are electrically connected. Still further, a ground wire of the control circuit and the second shield case are electrically connected.

Abstract: It is an object of the invention to avoid lack of lubricant oil in any of a plurality of compressors disposed in parallel in a single refrigerant circuit. A freezer unit, wherein a first kind oil return pipe 18 leading to a refrigerant suction pipe 4 of a first compressor 1 from an oil separator installed in a discharged refrigerant junction pipe 8 is installed, and a second kind oil return pipe 12 leading to a refrigerant suction pipe 5 of a second compressor 2 from the regular oil level height of the first compressor 1.

Abstract: A lighting device for a discharge lamp includes a power supplying circuit for supplying electric power to the discharge lamp. A current sensing circuit is operative for sensing a lamp current which flows through the discharge lamp. A control circuit is operative for enabling the power supplying circuit to supply one of a direct-current electric power and a low-frequency electric power to the discharge lamp during a time interval in start of the discharge lamp. The control circuit is also operative for adjusting a duration time of supply of a one-polarity electric power to the discharge lamp in accordance with a magnitude of the lamp current sensed by the current sensing circuit. Further, the control circuit is operative for enabling the power supplying circuit to supply an alternating-current electric power to the discharge lamp after the time interval elapses.